The Painted Hills are in The John Day Fossil Beds, a geologic area near the small town of Mitchell in central Oregon. The Painted Hills are listed as one of the Seven Wonders of Oregon and are named after the colorful layers of its hills corresponding to various geological eras, formed when the area was an ancient river floodplain.
Above-a general view of the area in spring. Beneath those hills when the top layer has eroded is what you see below.
Photo above and below courtesy of Wikipedia commons
Above and below the nearby less visited Juniper Hills Reserve.
